And are two opposite vertices of a square

MATHEMATICS · Multi correct · A Level · Mathematics · Coordinate geometry in the (x y) plane · Coordinate geometry in the (x y) plane

Problem

A(1,3)

and

C(7,5)

are two opposite vertices of a square. The equations of the sides through

A

are (1)

x+2y-7=0

(2)

2x+y-5=0

(3)

2x-y+1=0

(4)

x-y+9=0